The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 16, 2011
Filed:
Aug. 01, 2005
Applicants:
Shoichi Osada, Gunma-ken, JP;
Eiji Nakayama, Gunma-ken, JP;
Inventors:
Shoichi Osada, Gunma-ken, JP;
Eiji Nakayama, Gunma-ken, JP;
Assignee:
Shin-Etsu Chemical Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08K 5/00 (2006.01); H01L 21/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
Epoxy resin compositions comprising (A) an epoxy resin, (B) a phenolic resin curing agent, (C) an inorganic filler, (D) a rare earth oxide, and optionally (E) a phosphazene compound cure into products having improved heat resistance and moisture-proof reliability and are best suited for the encapsulation of semiconductor devices.